Set password


Set a Password for a PDF

Professional Standard Professional(TS)

To restrict functionalities such as viewing, printing, and editing in a PDF, you can set a password.

  1. Select [File] menu > [Set Security] > [Set Password].
  2. Enable the [Secure PDF] checkbox.
  3. Configure settings for "Encryption", "Password", and "Permissions".
  4. Click [OK].
  5. Confirm the message and click [OK].
  6. Execute [Save] or [Save As] to save the PDF.

Encryption

The higher the encryption level, the more effective it is in terms of security.

The higher the encryption level, the newer the PDF version should be.

Encryption Level Compatible PDF versions
128-bit RC4 1.4 - 1.7
128-bit AES 1.6, 1.7
256-bit AES 1.7, 2.0

If you select [High (128-bit RC4 Acrobat6 compatible)] or higher, you can enable encryption of character strings, streams, and metadata.

Encrypt a character string Encrypt all text strings within the PDF.
Encrypt a stream Encrypt data streams within the PDF, including attached files.
Encrypt metadata  Encrypt document information (such as title, author, subtitle, keywords, etc.).

 

Password

User Password

A password (1-32 characters) required to open the PDF.
Opening the PDF with this password allows viewing within the permissions set in "Permissions."

  • It cannot be set to be the same as your [Master Password].
Master Password

A password (1-32 characters) required to change permission settings.
Opening the PDF with this password allows unrestricted access regardless of the settings in "Permissions."

  • Also referred to as the "Owner Password."

 

Permissions

Disallow Printing Check here to disallow printing of the PDF file (or re-outputting as another PDF file).
Print All Pages Check here to allow printing of the PDF file at all resolution levels (or output as another PDF file).
Print in Low Resolution When you check here, the PDF becomes printable only at a resolution of 150dpi or lower.
Disallow copying or extracting of text, images or other content Check here if you do not allow copying of selected text or images in the PDF file, or to extract specific pages. 
Disable Document Accessibility Check here, if you do not want the PDF file to be edited using the accessibility functions.
Disallow addition or change of signature or sealing, comments, bookmarks and form fields Check here, if you do not allow setting of new notes or form fields, entering text to the existing notes, or changing the setting of form fields.
Allow edit, comment, input into form fields or signature and stamp Check here, if you allow all editing functions except PDF file extraction and printing (or output as another PDF file). 
Allow stamp without signature, comment, input into form fields and signature of existing signature fields Check here to allow create and input to the form fields and add a signature. 
Allow input into form fields and signature of existing signature fields Check here, if you allow to add signature and to enter to the form field. 
Allow addition, insertion, deletion and rotation of document Check here, if you allow insertions, deletions, and rotations of the page, and the creation of bookmarks and thumbnails.

X: Restricted, :Unrestricted

  Disallow addition or change of signature or sealing, comments, bookmarks and form fields Allow edit, comment, input into form fields or signature and stamp Allow stamp without signature, comment, input into form fields and signature of existing signature fields Allow input into form fields and signature of existing signature fields Allow addition, insertion, deletion and rotation of document
Change the document X X X X
Document assembly X X X
Copy or extract content
Extract content for accessibility
Comment X X X
Create form field X X X X
Enter to the form field X X
Sign existing signature field X X
Create a signature field and sign X X X X
Create template page X X X
Send the form X X X

 

Apply time limit security

In addition to setting a password, you can also impose restrictions on the number of views or the viewing deadline for the PDF.

(See: Save with a time limit)

Open a Password-Protected PDF

Professional Standard Viewer Professional(TS)

When attempting to open a PDF with a user password, you will be prompted to enter the password.
Inputting either the user password or the master password (owner password) allows you to view the PDF.
If only the master password is set, no password entry is required.
When both a user password and a master password are set, opening the PDF with the user password may result in certain functions, such as printing and editing, being restricted.

When changing the security settings of a PDF that already has a password set, the procedure is similar to the steps for setting a password for a PDF. When doing so, if a master password is set, you will need to input the master password.

When the encryption level is set to '256-bit AES,' any changes to the security settings will require the user password to be reset or re-entered.

You can either update the content in the user password field to set a new password, or simply re-enter your current user password when prompted for password input.